drivers/net/wireless/ath/ath10k/wow.c

   1 /*
   2  * Copyright (c) 2015-2017 Qualcomm Atheros, Inc.
   3  * Copyright (c) 2018, The Linux Foundation. All rights reserved.
   4  *
   5  * Permission to use, copy, modify, and/or distribute this software for any
   6  * purpose with or without fee is hereby granted, provided that the above
   7  * copyright notice and this permission notice appear in all copies.
   8  *
   9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  16  */
  17
  18 #include "mac.h"
  19
  20 #include <net/mac80211.h>
  21 #include "hif.h"
  22 #include "core.h"
  23 #include "debug.h"
  24 #include "wmi.h"
  25 #include "wmi-ops.h"
  26
  27 static const struct wiphy_wowlan_support ath10k_wowlan_support = {
  28         .flags = WIPHY_WOWLAN_DISCONNECT |
  29                  WIPHY_WOWLAN_MAGIC_PKT,
  30         .pattern_min_len = WOW_MIN_PATTERN_SIZE,
  31         .pattern_max_len = WOW_MAX_PATTERN_SIZE,
  32         .max_pkt_offset = WOW_MAX_PKT_OFFSET,
  33 };
  34
  35 static int ath10k_wow_vif_cleanup(struct ath10k_vif *arvif)
  36 {
  37         struct ath10k *ar = arvif->ar;
  38         int i, ret;
  39
  40         for (i = 0; i < WOW_EVENT_MAX; i++) {
  41                 ret = ath10k_wmi_wow_add_wakeup_event(ar, arvif->vdev_id, i, 0);
  42                 if (ret) {
  43                         ath10k_warn(ar, "failed to issue wow wakeup for event %s on vdev %i: %d\n",
  44                                     wow_wakeup_event(i), arvif->vdev_id, ret);
  45                         return ret;
  46                 }
  47         }
  48
  49         for (i = 0; i < ar->wow.max_num_patterns; i++) {
  50                 ret = ath10k_wmi_wow_del_pattern(ar, arvif->vdev_id, i);
  51                 if (ret) {
  52                         ath10k_warn(ar, "failed to delete wow pattern %d for vdev %i: %d\n",
  53                                     i, arvif->vdev_id, ret);
  54                         return ret;
  55                 }
  56         }
  57
  58         return 0;
  59 }
  60
  61 static int ath10k_wow_cleanup(struct ath10k *ar)
  62 {
  63         struct ath10k_vif *arvif;
  64         int ret;
  65
  66         lockdep_assert_held(&ar->conf_mutex);
  67
  68         list_for_each_entry(arvif, &ar->arvifs, list) {
  69                 ret = ath10k_wow_vif_cleanup(arvif);
  70                 if (ret) {
  71                         ath10k_warn(ar, "failed to clean wow wakeups on vdev %i: %d\n",
  72                                     arvif->vdev_id, ret);
  73                         return ret;
  74                 }
  75         }
  76
  77         return 0;
  78 }
  79
  80 /*
  81  * Convert a 802.3 format to a 802.11 format.
  82  *         +------------+-----------+--------+----------------+
  83  * 802.3:  |dest mac(6B)|src mac(6B)|type(2B)|     body...    |
  84  *         +------------+-----------+--------+----------------+
  85  *                |__         |_______    |____________  |________
  86  *                   |                |                |          |
  87  *         +--+------------+----+-----------+---------------+-----------+
  88  * 802.11: |4B|dest mac(6B)| 6B |src mac(6B)|  8B  |type(2B)|  body...  |
  89  *         +--+------------+----+-----------+---------------+-----------+
  90  */
  91 static void ath10k_wow_convert_8023_to_80211(struct cfg80211_pkt_pattern *new,
  92                                              const struct cfg80211_pkt_pattern *old)
  93 {
  94         u8 hdr_8023_pattern[ETH_HLEN] = {};
  95         u8 hdr_8023_bit_mask[ETH_HLEN] = {};
  96         u8 hdr_80211_pattern[WOW_HDR_LEN] = {};
  97         u8 hdr_80211_bit_mask[WOW_HDR_LEN] = {};
  98
  99         int total_len = old->pkt_offset + old->pattern_len;
 100         int hdr_80211_end_offset;
 101
 102         struct ieee80211_hdr_3addr *new_hdr_pattern =
 103                 (struct ieee80211_hdr_3addr *)hdr_80211_pattern;
 104         struct ieee80211_hdr_3addr *new_hdr_mask =
 105                 (struct ieee80211_hdr_3addr *)hdr_80211_bit_mask;
 106         struct ethhdr *old_hdr_pattern = (struct ethhdr *)hdr_8023_pattern;
 107         struct ethhdr *old_hdr_mask = (struct ethhdr *)hdr_8023_bit_mask;
 108         int hdr_len = sizeof(*new_hdr_pattern);
 109
 110         struct rfc1042_hdr *new_rfc_pattern =
 111                 (struct rfc1042_hdr *)(hdr_80211_pattern + hdr_len);
 112         struct rfc1042_hdr *new_rfc_mask =
 113                 (struct rfc1042_hdr *)(hdr_80211_bit_mask + hdr_len);
 114         int rfc_len = sizeof(*new_rfc_pattern);
 115
 116         memcpy(hdr_8023_pattern + old->pkt_offset,
 117                old->pattern, ETH_HLEN - old->pkt_offset);
 118         memcpy(hdr_8023_bit_mask + old->pkt_offset,
 119                old->mask, ETH_HLEN - old->pkt_offset);
 120
 121         /* Copy destination address */
 122         memcpy(new_hdr_pattern->addr1, old_hdr_pattern->h_dest, ETH_ALEN);
 123         memcpy(new_hdr_mask->addr1, old_hdr_mask->h_dest, ETH_ALEN);
 124
 125         /* Copy source address */
 126         memcpy(new_hdr_pattern->addr3, old_hdr_pattern->h_source, ETH_ALEN);
 127         memcpy(new_hdr_mask->addr3, old_hdr_mask->h_source, ETH_ALEN);
 128
 129         /* Copy logic link type */
 130         memcpy(&new_rfc_pattern->snap_type,
 131                &old_hdr_pattern->h_proto,
 132                sizeof(old_hdr_pattern->h_proto));
 133         memcpy(&new_rfc_mask->snap_type,
 134                &old_hdr_mask->h_proto,
 135                sizeof(old_hdr_mask->h_proto));
 136
 137         /* Calculate new pkt_offset */
 138         if (old->pkt_offset < ETH_ALEN)
 139                 new->pkt_offset = old->pkt_offset +
 140                         offsetof(struct ieee80211_hdr_3addr, addr1);
 141         else if (old->pkt_offset < offsetof(struct ethhdr, h_proto))
 142                 new->pkt_offset = old->pkt_offset +
 143                         offsetof(struct ieee80211_hdr_3addr, addr3) -
 144                         offsetof(struct ethhdr, h_source);
 145         else
 146                 new->pkt_offset = old->pkt_offset + hdr_len + rfc_len - ETH_HLEN;
 147
 148         /* Calculate new hdr end offset */
 149         if (total_len > ETH_HLEN)
 150                 hdr_80211_end_offset = hdr_len + rfc_len;
 151         else if (total_len > offsetof(struct ethhdr, h_proto))
 152                 hdr_80211_end_offset = hdr_len + rfc_len + total_len - ETH_HLEN;
 153         else if (total_len > ETH_ALEN)
 154                 hdr_80211_end_offset = total_len - ETH_ALEN +
 155                         offsetof(struct ieee80211_hdr_3addr, addr3);
 156         else
 157                 hdr_80211_end_offset = total_len +
 158                         offsetof(struct ieee80211_hdr_3addr, addr1);
 159
 160         new->pattern_len = hdr_80211_end_offset - new->pkt_offset;
 161
 162         memcpy((u8 *)new->pattern,
 163                hdr_80211_pattern + new->pkt_offset,
 164                new->pattern_len);
 165         memcpy((u8 *)new->mask,
 166                hdr_80211_bit_mask + new->pkt_offset,
 167                new->pattern_len);
 168
 169         if (total_len > ETH_HLEN) {
 170                 /* Copy frame body */
 171                 memcpy((u8 *)new->pattern + new->pattern_len,
 172                        (void *)old->pattern + ETH_HLEN - old->pkt_offset,
 173                        total_len - ETH_HLEN);
 174                 memcpy((u8 *)new->mask + new->pattern_len,
 175                        (void *)old->mask + ETH_HLEN - old->pkt_offset,
 176                        total_len - ETH_HLEN);
 177
 178                 new->pattern_len += total_len - ETH_HLEN;
 179         }
 180 }
 181
 182 static int ath10k_wmi_pno_check(struct ath10k *ar, u32 vdev_id,
 183                                 struct cfg80211_sched_scan_request *nd_config,
 184                                 struct wmi_pno_scan_req *pno)
 185 {
 186         int i, j, ret = 0;
 187         u8 ssid_len;
 188
 189         pno->enable = 1;
 190         pno->vdev_id = vdev_id;
 191         pno->uc_networks_count = nd_config->n_match_sets;
 192
 193         if (!pno->uc_networks_count ||
 194             pno->uc_networks_count > WMI_PNO_MAX_SUPP_NETWORKS)
 195                 return -EINVAL;
 196
 197         if (nd_config->n_channels > WMI_PNO_MAX_NETW_CHANNELS_EX)
 198                 return -EINVAL;
 199
 200         /* Filling per profile  params */
 201         for (i = 0; i < pno->uc_networks_count; i++) {
 202                 ssid_len = nd_config->match_sets[i].ssid.ssid_len;
 203
 204                 if (ssid_len == 0 || ssid_len > 32)
 205                         return -EINVAL;
 206
 207                 pno->a_networks[i].ssid.ssid_len = __cpu_to_le32(ssid_len);
 208
 209                 memcpy(pno->a_networks[i].ssid.ssid,
 210                        nd_config->match_sets[i].ssid.ssid,
 211                        nd_config->match_sets[i].ssid.ssid_len);
 212                 pno->a_networks[i].authentication = 0;
 213                 pno->a_networks[i].encryption     = 0;
 214                 pno->a_networks[i].bcast_nw_type  = 0;
 215
 216                 /*Copying list of valid channel into request */
 217                 pno->a_networks[i].channel_count = nd_config->n_channels;
 218                 pno->a_networks[i].rssi_threshold = nd_config->match_sets[i].rssi_thold;
 219
 220                 for (j = 0; j < nd_config->n_channels; j++) {
 221                         pno->a_networks[i].channels[j] =
 222                                         nd_config->channels[j]->center_freq;
 223                 }
 224         }
 225
 226         /* set scan to passive if no SSIDs are specified in the request */
 227         if (nd_config->n_ssids == 0)
 228                 pno->do_passive_scan = true;
 229         else
 230                 pno->do_passive_scan = false;
 231
 232         for (i = 0; i < nd_config->n_ssids; i++) {
 233                 j = 0;
 234                 while (j < pno->uc_networks_count) {
 235                         if (__le32_to_cpu(pno->a_networks[j].ssid.ssid_len) ==
 236                                 nd_config->ssids[i].ssid_len &&
 237                         (memcmp(pno->a_networks[j].ssid.ssid,
 238                                 nd_config->ssids[i].ssid,
 239                                 __le32_to_cpu(pno->a_networks[j].ssid.ssid_len)) == 0)) {
 240                                 pno->a_networks[j].bcast_nw_type = BCAST_HIDDEN;
 241                                 break;
 242                         }
 243                         j++;
 244                 }
 245         }
 246
 247         if (nd_config->n_scan_plans == 2) {
 248                 pno->fast_scan_period = nd_config->scan_plans[0].interval * MSEC_PER_SEC;
 249                 pno->fast_scan_max_cycles = nd_config->scan_plans[0].iterations;
 250                 pno->slow_scan_period =
 251                         nd_config->scan_plans[1].interval * MSEC_PER_SEC;
 252         } else if (nd_config->n_scan_plans == 1) {
 253                 pno->fast_scan_period = nd_config->scan_plans[0].interval * MSEC_PER_SEC;
 254                 pno->fast_scan_max_cycles = 1;
 255                 pno->slow_scan_period = nd_config->scan_plans[0].interval * MSEC_PER_SEC;
 256         } else {
 257                 ath10k_warn(ar, "Invalid number of scan plans %d !!",
 258                             nd_config->n_scan_plans);
 259         }
 260
 261         if (nd_config->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
 262                 /* enable mac randomization */
 263                 pno->enable_pno_scan_randomization = 1;
 264                 memcpy(pno->mac_addr, nd_config->mac_addr, ETH_ALEN);
 265                 memcpy(pno->mac_addr_mask, nd_config->mac_addr_mask, ETH_ALEN);
 266         }
 267
 268         pno->delay_start_time = nd_config->delay;
 269
 270         /* Current FW does not support min-max range for dwell time */
 271         pno->active_max_time = WMI_ACTIVE_MAX_CHANNEL_TIME;
 272         pno->passive_max_time = WMI_PASSIVE_MAX_CHANNEL_TIME;
 273         return ret;
 274 }
 275
 276 static int ath10k_vif_wow_set_wakeups(struct ath10k_vif *arvif,
 277                                       struct cfg80211_wowlan *wowlan)
 278 {
 279         int ret, i;
 280         unsigned long wow_mask = 0;
 281         struct ath10k *ar = arvif->ar;
 282         const struct cfg80211_pkt_pattern *patterns = wowlan->patterns;
 283         int pattern_id = 0;
 284
 285         /* Setup requested WOW features */
 286         switch (arvif->vdev_type) {
 287         case WMI_VDEV_TYPE_IBSS:
 288                 __set_bit(WOW_BEACON_EVENT, &wow_mask);
 289                  /* fall through */
 290         case WMI_VDEV_TYPE_AP:
 291                 __set_bit(WOW_DEAUTH_RECVD_EVENT, &wow_mask);
 292                 __set_bit(WOW_DISASSOC_RECVD_EVENT, &wow_mask);
 293                 __set_bit(WOW_PROBE_REQ_WPS_IE_EVENT, &wow_mask);
 294                 __set_bit(WOW_AUTH_REQ_EVENT, &wow_mask);
 295                 __set_bit(WOW_ASSOC_REQ_EVENT, &wow_mask);
 296                 __set_bit(WOW_HTT_EVENT, &wow_mask);
 297                 __set_bit(WOW_RA_MATCH_EVENT, &wow_mask);
 298                 break;
 299         case WMI_VDEV_TYPE_STA:
 300                 if (wowlan->disconnect) {
 301                         __set_bit(WOW_DEAUTH_RECVD_EVENT, &wow_mask);
 302                         __set_bit(WOW_DISASSOC_RECVD_EVENT, &wow_mask);
 303                         __set_bit(WOW_BMISS_EVENT, &wow_mask);
 304                         __set_bit(WOW_CSA_IE_EVENT, &wow_mask);
 305                 }
 306
 307                 if (wowlan->magic_pkt)
 308                         __set_bit(WOW_MAGIC_PKT_RECVD_EVENT, &wow_mask);
 309
 310                 if (wowlan->nd_config) {
 311                         struct wmi_pno_scan_req *pno;
 312                         int ret;
 313
 314                         pno = kzalloc(sizeof(*pno), GFP_KERNEL);
 315                         if (!pno)
 316                                 return -ENOMEM;
 317
 318                         ar->nlo_enabled = true;
 319
 320                         ret = ath10k_wmi_pno_check(ar, arvif->vdev_id,
 321                                                    wowlan->nd_config, pno);
 322                         if (!ret) {
 323                                 ath10k_wmi_wow_config_pno(ar, arvif->vdev_id, pno);
 324                                 __set_bit(WOW_NLO_DETECTED_EVENT, &wow_mask);
 325                         }
 326
 327                         kfree(pno);
 328                 }
 329                 break;
 330         default:
 331                 break;
 332         }
 333
 334         for (i = 0; i < wowlan->n_patterns; i++) {
 335                 u8 bitmask[WOW_MAX_PATTERN_SIZE] = {};
 336                 u8 ath_pattern[WOW_MAX_PATTERN_SIZE] = {};
 337                 u8 ath_bitmask[WOW_MAX_PATTERN_SIZE] = {};
 338                 struct cfg80211_pkt_pattern new_pattern = {};
 339                 struct cfg80211_pkt_pattern old_pattern = patterns[i];
 340                 int j;
 341
 342                 new_pattern.pattern = ath_pattern;
 343                 new_pattern.mask = ath_bitmask;
 344                 if (patterns[i].pattern_len > WOW_MAX_PATTERN_SIZE)
 345                         continue;
 346                 /* convert bytemask to bitmask */
 347                 for (j = 0; j < patterns[i].pattern_len; j++)
 348                         if (patterns[i].mask[j / 8] & BIT(j % 8))
 349                                 bitmask[j] = 0xff;
 350                 old_pattern.mask = bitmask;
 351                 new_pattern = old_pattern;
 352
 353                 if (ar->wmi.rx_decap_mode == ATH10K_HW_TXRX_NATIVE_WIFI) {
 354                         if (patterns[i].pkt_offset < ETH_HLEN)
 355                                 ath10k_wow_convert_8023_to_80211(&new_pattern,
 356                                                                  &old_pattern);
 357                         else
 358                                 new_pattern.pkt_offset += WOW_HDR_LEN - ETH_HLEN;
 359                 }
 360
 361                 if (WARN_ON(new_pattern.pattern_len > WOW_MAX_PATTERN_SIZE))
 362                         return -EINVAL;
 363
 364                 ret = ath10k_wmi_wow_add_pattern(ar, arvif->vdev_id,
 365                                                  pattern_id,
 366                                                  new_pattern.pattern,
 367                                                  new_pattern.mask,
 368                                                  new_pattern.pattern_len,
 369                                                  new_pattern.pkt_offset);
 370                 if (ret) {
 371                         ath10k_warn(ar, "failed to add pattern %i to vdev %i: %d\n",
 372                                     pattern_id,
 373                                     arvif->vdev_id, ret);
 374                         return ret;
 375                 }
 376
 377                 pattern_id++;
 378                 __set_bit(WOW_PATTERN_MATCH_EVENT, &wow_mask);
 379         }
 380
 381         for (i = 0; i < WOW_EVENT_MAX; i++) {
 382                 if (!test_bit(i, &wow_mask))
 383                         continue;
 384                 ret = ath10k_wmi_wow_add_wakeup_event(ar, arvif->vdev_id, i, 1);
 385                 if (ret) {
 386                         ath10k_warn(ar, "failed to enable wakeup event %s on vdev %i: %d\n",
 387                                     wow_wakeup_event(i), arvif->vdev_id, ret);
 388                         return ret;
 389                 }
 390         }
 391
 392         return 0;
 393 }
 394
 395 static int ath10k_wow_set_wakeups(struct ath10k *ar,
 396                                   struct cfg80211_wowlan *wowlan)
 397 {
 398         struct ath10k_vif *arvif;
 399         int ret;
 400
 401         lockdep_assert_held(&ar->conf_mutex);
 402
 403         list_for_each_entry(arvif, &ar->arvifs, list) {
 404                 ret = ath10k_vif_wow_set_wakeups(arvif, wowlan);
 405                 if (ret) {
 406                         ath10k_warn(ar, "failed to set wow wakeups on vdev %i: %d\n",
 407                                     arvif->vdev_id, ret);
 408                         return ret;
 409                 }
 410         }
 411
 412         return 0;
 413 }
 414
 415 static int ath10k_vif_wow_clean_nlo(struct ath10k_vif *arvif)
 416 {
 417         int ret = 0;
 418         struct ath10k *ar = arvif->ar;
 419
 420         switch (arvif->vdev_type) {
 421         case WMI_VDEV_TYPE_STA:
 422                 if (ar->nlo_enabled) {
 423                         struct wmi_pno_scan_req *pno;
 424
 425                         pno = kzalloc(sizeof(*pno), GFP_KERNEL);
 426                         if (!pno)
 427                                 return -ENOMEM;
 428
 429                         pno->enable = 0;
 430                         ar->nlo_enabled = false;
 431                         ret = ath10k_wmi_wow_config_pno(ar, arvif->vdev_id, pno);
 432                         kfree(pno);
 433                 }
 434                 break;
 435         default:
 436                 break;
 437         }
 438         return ret;
 439 }
 440
 441 static int ath10k_wow_nlo_cleanup(struct ath10k *ar)
 442 {
 443         struct ath10k_vif *arvif;
 444         int ret = 0;
 445
 446         lockdep_assert_held(&ar->conf_mutex);
 447
 448         list_for_each_entry(arvif, &ar->arvifs, list) {
 449                 ret = ath10k_vif_wow_clean_nlo(arvif);
 450                 if (ret) {
 451                         ath10k_warn(ar, "failed to clean nlo settings on vdev %i: %d\n",
 452                                     arvif->vdev_id, ret);
 453                         return ret;
 454                 }
 455         }
 456
 457         return 0;
 458 }
 459
 460 static int ath10k_wow_enable(struct ath10k *ar)
 461 {
 462         int ret;
 463
 464         lockdep_assert_held(&ar->conf_mutex);
 465
 466         reinit_completion(&ar->target_suspend);
 467
 468         ret = ath10k_wmi_wow_enable(ar);
 469         if (ret) {
 470                 ath10k_warn(ar, "failed to issue wow enable: %d\n", ret);
 471                 return ret;
 472         }
 473
 474         ret = wait_for_completion_timeout(&ar->target_suspend, 3 * HZ);
 475         if (ret == 0) {
 476                 ath10k_warn(ar, "timed out while waiting for suspend completion\n");
 477                 return -ETIMEDOUT;
 478         }
 479
 480         return 0;
 481 }
 482
 483 static int ath10k_wow_wakeup(struct ath10k *ar)
 484 {
 485         int ret;
 486
 487         lockdep_assert_held(&ar->conf_mutex);
 488
 489         reinit_completion(&ar->wow.wakeup_completed);
 490
 491         ret = ath10k_wmi_wow_host_wakeup_ind(ar);
 492         if (ret) {
 493                 ath10k_warn(ar, "failed to send wow wakeup indication: %d\n",
 494                             ret);
 495                 return ret;
 496         }
 497
 498         ret = wait_for_completion_timeout(&ar->wow.wakeup_completed, 3 * HZ);
 499         if (ret == 0) {
 500                 ath10k_warn(ar, "timed out while waiting for wow wakeup completion\n");
 501                 return -ETIMEDOUT;
 502         }
 503
 504         return 0;
 505 }
 506
 507 int ath10k_wow_op_suspend(struct ieee80211_hw *hw,
 508                           struct cfg80211_wowlan *wowlan)
 509 {
 510         struct ath10k *ar = hw->priv;
 511         int ret;
 512
 513         mutex_lock(&ar->conf_mutex);
 514
 515         if (WARN_ON(!test_bit(ATH10K_FW_FEATURE_WOWLAN_SUPPORT,
 516                               ar->running_fw->fw_file.fw_features))) {
 517                 ret = 1;
 518                 goto exit;
 519         }
 520
 521         ret =  ath10k_wow_cleanup(ar);
 522         if (ret) {
 523                 ath10k_warn(ar, "failed to clear wow wakeup events: %d\n",
 524                             ret);
 525                 goto exit;
 526         }
 527
 528         ret = ath10k_wow_set_wakeups(ar, wowlan);
 529         if (ret) {
 530                 ath10k_warn(ar, "failed to set wow wakeup events: %d\n",
 531                             ret);
 532                 goto cleanup;
 533         }
 534
 535         ath10k_mac_wait_tx_complete(ar);
 536
 537         ret = ath10k_wow_enable(ar);
 538         if (ret) {
 539                 ath10k_warn(ar, "failed to start wow: %d\n", ret);
 540                 goto cleanup;
 541         }
 542
 543         ret = ath10k_hif_suspend(ar);
 544         if (ret) {
 545                 ath10k_warn(ar, "failed to suspend hif: %d\n", ret);
 546                 goto wakeup;
 547         }
 548
 549         goto exit;
 550
 551 wakeup:
 552         ath10k_wow_wakeup(ar);
 553
 554 cleanup:
 555         ath10k_wow_cleanup(ar);
 556
 557 exit:
 558         mutex_unlock(&ar->conf_mutex);
 559         return ret ? 1 : 0;
 560 }
 561
 562 void ath10k_wow_op_set_wakeup(struct ieee80211_hw *hw, bool enabled)
 563 {
 564         struct ath10k *ar = hw->priv;
 565
 566         mutex_lock(&ar->conf_mutex);
 567         if (test_bit(ATH10K_FW_FEATURE_WOWLAN_SUPPORT,
 568                      ar->running_fw->fw_file.fw_features)) {
 569                 device_set_wakeup_enable(ar->dev, enabled);
 570         }
 571         mutex_unlock(&ar->conf_mutex);
 572 }
 573
 574 int ath10k_wow_op_resume(struct ieee80211_hw *hw)
 575 {
 576         struct ath10k *ar = hw->priv;
 577         int ret;
 578
 579         mutex_lock(&ar->conf_mutex);
 580
 581         if (WARN_ON(!test_bit(ATH10K_FW_FEATURE_WOWLAN_SUPPORT,
 582                               ar->running_fw->fw_file.fw_features))) {
 583                 ret = 1;
 584                 goto exit;
 585         }
 586
 587         ret = ath10k_hif_resume(ar);
 588         if (ret) {
 589                 ath10k_warn(ar, "failed to resume hif: %d\n", ret);
 590                 goto exit;
 591         }
 592
 593         ret = ath10k_wow_wakeup(ar);
 594         if (ret)
 595                 ath10k_warn(ar, "failed to wakeup from wow: %d\n", ret);
 596
 597         ret = ath10k_wow_nlo_cleanup(ar);
 598         if (ret)
 599                 ath10k_warn(ar, "failed to cleanup nlo: %d\n", ret);
 600
 601 exit:
 602         if (ret) {
 603                 switch (ar->state) {
 604                 case ATH10K_STATE_ON:
 605                         ar->state = ATH10K_STATE_RESTARTING;
 606                         ret = 1;
 607                         break;
 608                 case ATH10K_STATE_OFF:
 609                 case ATH10K_STATE_RESTARTING:
 610                 case ATH10K_STATE_RESTARTED:
 611                 case ATH10K_STATE_UTF:
 612                 case ATH10K_STATE_WEDGED:
 613                         ath10k_warn(ar, "encountered unexpected device state %d on resume, cannot recover\n",
 614                                     ar->state);
 615                         ret = -EIO;
 616                         break;
 617                 }
 618         }
 619
 620         mutex_unlock(&ar->conf_mutex);
 621         return ret;
 622 }
 623
 624 int ath10k_wow_init(struct ath10k *ar)
 625 {
 626         if (!test_bit(ATH10K_FW_FEATURE_WOWLAN_SUPPORT,
 627                       ar->running_fw->fw_file.fw_features))
 628                 return 0;
 629
 630         if (WARN_ON(!test_bit(WMI_SERVICE_WOW, ar->wmi.svc_map)))
 631                 return -EINVAL;
 632
 633         ar->wow.wowlan_support = ath10k_wowlan_support;
 634
 635         if (ar->wmi.rx_decap_mode == ATH10K_HW_TXRX_NATIVE_WIFI) {
 636                 ar->wow.wowlan_support.pattern_max_len -= WOW_MAX_REDUCE;
 637                 ar->wow.wowlan_support.max_pkt_offset -= WOW_MAX_REDUCE;
 638         }
 639
 640         if (test_bit(WMI_SERVICE_NLO, ar->wmi.svc_map)) {
 641                 ar->wow.wowlan_support.flags |= WIPHY_WOWLAN_NET_DETECT;
 642                 ar->wow.wowlan_support.max_nd_match_sets = WMI_PNO_MAX_SUPP_NETWORKS;
 643         }
 644
 645         ar->wow.wowlan_support.n_patterns = ar->wow.max_num_patterns;
 646         ar->hw->wiphy->wowlan = &ar->wow.wowlan_support;
 647
 648         device_set_wakeup_capable(ar->dev, true);
 649
 650         return 0;
 651 }